锂离子电池 BAK 电池 N18650CK 的 Batemo 电池模型是一个高精度的物理电池模型，具有全球有效性。 As a digital twin it seamlessly integrates into your research, development and battery analytics by basing your decisions on simulations.
| Cell Origin | purchased on free market |
| Cell Format | 18650 |
| Dimensions | 18.3 x 64.8 毫米 |
| Weight | 45.7 g |
| Capacity definition
The nominal capacity originates from the manufacturer’s data sheet, if available. When the data sheet is unavailable, the nominal capacity is estimated. Batemo 在环境温度为 25°C 的条件下，以 0.30A 的恒定电流（0.1C）将电池从 100% 放电，直至电压达到 2.5V，以此测量 C/10 容量。 The thermal boundary condition is free convection. |
标称 3.05 Ah C/10 2.86 Ah |
| Current definition
All quantities are measurement results from the Batemo battery laboratory. 持续电流是电池完全放电而不会过热的最高电流。 因此，在 25°C 的环境温度下，电池以恒定电流从 100% 的充电状态 (SOC) 开始放电，直到达到 10% 的剩余电量和 2.5V 的电压下限或 90% 的最高表面温度 (54°C)。 峰值电流是电池 5 分钟内可提供的电流。 因此，电池在 25°C 的环境温度下以恒定电流从 100% SOC 放电，直到 5 分钟后达到 2.5V 的电压下限或 60°C 的最高表面温度。 For cells that reach the maximum surface temperature, the measured current is taken directly as the peak current. For cells that do not reach the maximum surface temperature after 5 minutes because they reach the lower voltage limit first, the measured current is multiplied by a correction factor that estimates the current that would have heated the cell to the maximum surface temperature within 5 minutes. 热边界条件为自由对流。 These operating conditions may be outside the cell manufacturer’s specification. |
连续 6.68 A 峰值 12.3 A |
| Energy definition
Batemo 在 25°C 的环境温度下，以 0.30A 的恒定电流（0.1C）对电池从 100% 放电，直至电压达到 2.5V，从而测量出 C/10 能量。 The thermal boundary condition is free convection. |
C/10 10.5 Wh |
| Power definition
All quantities are measurement results from the Batemo battery laboratory. 持续功率是电池完全放电而不过热的最高功率。 因此，在 25°C 的环境温度下，电池以恒定电流从 100% 的充电状态 (SOC) 开始放电，直到达到 10% 的剩余电量和 2.5V 的电压下限或 90% 的最高表面温度（54°C）。 峰值功率是电池 5 分钟内可提供的功率。 因此，电池在 25°C 的环境温度下以恒定电流从 100% SOC 放电，直到 5 分钟后达到 2.5V 的电压下限或 60°C 的最高表面温度。 For cells that reach the maximum temperature limit, the measured power is directly taken as peak power. For cells that do not reach the maximum surface temperature after 5 minutes because they reach the lower voltage limit first, the measured power is multiplied by a correction factor that estimates the power that would have heated the cell to the maximum surface temperature within 5 minutes. 热边界条件为自由对流。 These operating conditions may be outside the cell manufacturer’s specification. |
连续 22.6 W 峰值 41.6 W |
| Energy Density definition
The energy densities result from the C/10 energy, the cell weight and the cell volume. |
重量 230 Wh/kg 容积 616 Wh/l |
| Power Density definition
The power densities result from the peak power, the cell weight and the cell volume. |
重量 911 W/kg 容积 2.44 千瓦/升 |
BAK Battery N18650CK Model
锂离子电池 BAK 电池 N18650CK 的 Batemo 电池模型是一个高精度的物理电池模型，具有全球有效性。 As a digital twin it seamlessly integrates into your research, development and battery analytics by basing your decisions on simulations. See the details to learn more about the features and capabilities of the Batemo Cell Model. Batemo demonstrates the accuracy and validity of the Batemo Cell Model by comparing battery simulation and measurement data in the range given below. Validation is extensive, experimental characterization covers the total operational area of the cell: At low and high temperatures, up to the maximal current and in the whole state of charge range.
| State of Charge Range | 0 … 100% |
| Current Range definition The current range are the electrical current limits as used in the Batemo battery laboratory. 请参阅比克电池 N18650CK 数据表，了解电池当前安全工作区域的准确定义。 |
-15 A 放电 …6 A 充电（-5.0C … 2.0C） |
| Voltage Range definition The voltage range are the electrical voltage limits as used in the Batemo battery laboratory. 请参阅比克电池 N18650CK 数据表，了解电池工作电压安全区域的准确定义。 |
2.5 … 4.2 V |
| Temperature Range definition The temperature range are the thermal limits as used in the Batemo battery laboratory. 请参阅比克电池 N18650CK 数据表，了解电池工作温度安全区域的准确定义。 |
-20 …60 °C |
Moreover, the Batemo Cell Model validation will be fully transparent. The Batemo Cell Data contains the raw measurement and simulation data. For all experiments the voltage, temperature, power and energy accuracies are calculated. This allows straight-forward evaluation and analysis of the Batemo Cell Model validity. 图中显示了比克电池 N18650CK 的部分特性数据，用于评估电池性能。 The prediction of the Batemo Cell Model is included as soon as the Batemo Cell Model is finished.
Discharge Characteristics
- Discharge Characteristics: The electrical and thermal discharge behavior is strongly nonlinear.
- Pulse Characteristics: The shape of different current pulses changes strongly.
- Energy Characteristics: The graph visualizes how much energy the cell can deliver when operated at different powers.
- Power Characteristics: The more power the cell supplies, the shorter it can deliver the power.
- Thermal Characteristics: The greater the thermal losses, the more the cell heats up, resulting in higher depleted power.
Pulse Characteristics
show experiment definitions
The cell is discharged from 100% SOC with different constant currents at different ambient temperatures. The thermal boundary condition is free convection. 当电压达到 2.5V 或表面温度达到 60°C 时，测量停止。
The cell is discharged from 100% SOC with current pulses followed by no-load phases at different ambient temperatures. The thermal boundary condition is free convection. 当电压达到 2.5V 或表面温度达到 60°C 时，测量停止。 The graph shows a zoomed view of the measurement to visualize one of the pulses.
The cell is discharged from 100% SOC with different constant currents at 25°C. The thermal boundary condition is free convection. 当电压达到 2.5V 或表面温度达到 60°C 时，测量停止。 The graph shows the derived exchanged energy and average power of the experiment.
The cell is discharged from 100% SOC with different constant currents at 25°C. The thermal boundary condition is free convection. 当电压达到 2.5V 或表面温度达到 60°C 时，测量停止。 The graph shows the derived experiment duration and average power of the experiment.
The cell is discharged from 100% SOC with different constant currents at 25°C. The thermal boundary condition is free convection. 当电压达到 2.5V 或表面温度达到 60°C 时，测量停止。 The graph shows the cell surface temperature at the end and the derived average power of the experiment.
Energy Characteristics
How much energy can it deliver?
Power Characteristics
How long can it deliver the power?
Thermal Characteristics
How hot does it get?
The mean accuracies and supported simulation tools are published as soon as the Batemo Cell Model is finished.
BAK Battery N18650CK Data
Batemo 对锂离子电池 BAK Battery N18650CK 进行了广泛的实验鉴定。 The data contains measurement results in the total operational area of the cell. The descriptions and graphs below explain and show the available measurements. The Batemo Cell Viewer allows easy and fast analysis, evaluation and comparison of the data. See the details to learn more.
Constant Currents
The cell is discharged from 100% SOC or charged from 0% SOC with different constant currents at different ambient temperatures. The thermal boundary condition is free convection. 当电压达到 2.5V 或 4.2V 或表面温度达到 60°C 时，测量停止。 The graph shows for which ambient temperatures and charging and discharging constant currents measurements are available.
Pulse Currents
The cell is discharged from 100% SOC or charged from 0% SOC with current pulses followed by no-load phases at different ambient temperatures. The thermal boundary condition is free convection. 当电压达到 2.5V 或 4.2V 或表面温度达到 60°C 时，测量停止。 The graph shows for which ambient temperatures and pulse currents measurements are available.
Power Profiles
The cell delivers a typical power profile from 100% SOC at different ambient temperatures. The thermal boundary condition is free convection. 当电压达到 2.5V 或表面温度达到 60°C 时，测量停止。 The table summarizes for which ambient temperatures the profile is available.
| Ambient Temperature | Available |
|---|---|
| -20 °C |  |
| 0 °C | |
| 25 °C | |
| 40 °C | |
